#include <openssl/evp.h>
int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
- const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
+ const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
int EVP_DigestVerifyUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt);
int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig, size_t siglen);
The EVP signature routines are a high level interface to digital signatures.
EVP_DigestVerifyInit() sets up verification context B<ctx> to use digest
-B<type> from ENGINE B<impl> and public key B<pkey>. B<ctx> must be initialized
-with EVP_MD_CTX_init() before calling this function. If B<pctx> is not NULL the
+B<type> from ENGINE B<impl> and public key B<pkey>. B<ctx> must be created
+with EVP_MD_CTX_new() before calling this function. If B<pctx> is not NULL the
EVP_PKEY_CTX of the verification operation will be written to B<*pctx>: this
can be used to set alternative verification options.
the use of clone digest is now discouraged.
For some key types and parameters the random number generator must be seeded
-or the operation will fail.
+or the operation will fail.
The call to EVP_DigestVerifyFinal() internally finalizes a copy of the digest
context. This means that EVP_VerifyUpdate() and EVP_VerifyFinal() can
=head1 HISTORY
-EVP_DigestVerifyInit(), EVP_DigestVerifyUpdate() and EVP_DigestVerifyFinal()
+EVP_DigestVerifyInit(), EVP_DigestVerifyUpdate() and EVP_DigestVerifyFinal()
were first added to OpenSSL 1.0.0.
+=head1 COPYRIGHT
+
+Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
=cut